20014451666723 has 4 divisors (see below), whose sum is σ = 20015017193928. Its totient is φ = 20013886139520.

The previous prime is 20014451666717. The next prime is 20014451666789. The reversal of 20014451666723 is 32766615441002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20014451666723 - 2⁴ = 20014451666707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20014451666323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 282710513 + ... + 282781298.

It is an arithmetic number, because the mean of its divisors is an integer number (5003754298482).

Almost surely, 2^{20014451666723} is an apocalyptic number.

20014451666723 is a deficient number, since it is larger than the sum of its proper divisors (565527205).

20014451666723 is an equidigital number, since it uses as much as digits as its factorization.

20014451666723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565527204.

The product of its (nonzero) digits is 1451520, while the sum is 47.

The spelling of 20014451666723 in words is "twenty trillion, fourteen billion, four hundred fifty-one million, six hundred sixty-six thousand, seven hundred twenty-three".